Solution : https://service.sap.com/sap/support/notes/645527 (SAP Service marketplace login required)
Key words :
customer-written program usesthe, rfc trace displays, contact vertex directly, rfc call return, vertex process support, vertex server processes, function modules rfc_calculate_taxes_doc, program id, server process, rfc destinations
Related Notes :
| 216364 | Blocked queue / No update to external tax system |